Portable barbecue grill



FIG. 1 is a front perspective view of a portable barbecue grill showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left-side elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a rear elevation view thereof.

The details shown in broken lines in all views are shown for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a portable barbecue grill, as shown and described. 